What problem does it solve? Full multi-phase refactoring workflows are too heavy when you only need a tiny, low-risk change like extracting a function or flattening nested conditionals. This Skill provides a fast-track channel that applies 1-3 classic refactoring moves directly, confirms scope once, and proves correctness by running existing tests. ## Core Features & Use Cases - Three Hard Entry Checks: Verifies the change is truly behavior-preserving, limited to one file with at most 3 edit points, and covered by existing tests before proceeding. - Classic Method Grounding: Every edit maps to a named refactoring such as Extract Function, Guard Clauses, Decompose Conditional, Extract Composable, or Memoization. - Self-Verification and One-Line Report: Runs unit tests, type checks, and grep for stale references, then reports method, file, and verification result in a single line. - Use Case: You ask to "quickly clean up this 40-line function" — the Skill confirms it will apply Extract Function to one file, makes the edit, runs the test suite, and reports the result without producing design docs or checklists. ## Quick Start Ask the AI to quickly refactor a specific function using this fast-track skill, for example by saying "do a small refactor of the parseData function and keep it simple".